Exploratorium
Exploratorium: Snacks
Exploratorium's snacks aren't edible, but they are good! Use your science skills to discover gravity, learn about biology, do fun experiments.
Physics Classroom
The Physics Classroom: Skydiving
The Physics Classroom offers this animation depicting the forces acting upon a falling skydiver.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: The Center of Mass
This site from the Illinois Institute of Technology provides a lab activity in which students determine the location of the center of mass of an irregularly shaped object. Observations are related to the balancing point of the object....
Khan Academy
Khan Academy: Newton's Law of Gravitation Review
Review the key concepts, equations, and skills for Newton's law of gravity, including how to find the gravitational field strength.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Potential Energy: How Is It Related to Kinetic Energy
After creating three different ramps with various heights, students will release toy cars from the tops of each ramp. Based on the elementary age level, students will collect data and analyze it.
NASA
Nasa: Beginner's Guide to Aerodynamics
This site from NASA uses a colorful graphic to illustrate why objects reach terminal velocity. Provides equation for the terminal velocity of an object. Graphic is accompanied by a simple explanation.
Treehut
Suzy's World: Black Holes
Use this site to find out what is a black hole in space and try an experiment.
PBS
Pbs Learning Media: Spin a Spiral Galaxy
This interactive activity from NOVA Online lets you spin a spiral galaxy, including our own Milky Way. It demonstrates that what you can learn from visible light observations of a galaxy is largely determined by the angle from which you...
Physics4kids
Physics 4 Kids: Motion/mechanics Overview Quiz
Take this ten question multiple choice quiz on motion and mechanics.
NASA
Nasa Star Child: Planet Hop
Figure out your age and your weight on all the planets in the solar system using the formulas given here. Then type them into the correct place, and let the computer check to see if you are correct.
University of Virginia
University of Virginia: Rotational Motion
A page describing rotational equilibrium and non-equilibrium situations. Includes graphics, equations, and many examples.
Science4Fun
Science4 Fun: Mass and Weight
What is mass? What is weight? Illustrated discussion of mass and weight including how they are measured.
NASA
Nasa: Rockets Educator Guide: Newton Car
This lesson gives students direction on how to experiment using gravity and force. Students will make a wooden car and use different forces to make the car propel.
TeachEngineering
Teach Engineering: Dams
Through eight lessons, students are introduced to many facets of dams, including their basic components, the common types (all designed to resist strong forces), their primary benefits (electricity generation, water supply, flood...
Curated OER
Hyper Physics: Earth Orbits
An equation for the law of universal gravitation is stated. The weight equation (W=m*g) is related to the law. An interactive Javascript form allows the user to practice determining the force of gravity and the acceleration of gravity...
Curated OER
Hyper Physics: Earth Orbits
An equation for the law of universal gravitation is stated. The weight equation (W=m*g) is related to the law. An interactive Javascript form allows the user to practice determining the force of gravity and the acceleration of gravity...
Curated OER
Father of Modern Experimentation and Reeko's Greatest Hero
This site provides instructions for a demonstration illustrating the "mystical force called gravity that pulls everything on Earth downward."
Georgia State University
Georgia State University: Hyper Physics: Circular Orbit
The necessity of gravitation to a circular orbit is discussed and equations for the orbital speed are derived from the law of universal gravitation. Binary systems in which two objects orbit about a center of mass are explained and...
Physics Classroom
The Physics Classroom: Cavendish and the Value of G
A short description of how Cavendish measured the value of G - the universal gravitation constant and supported Newton's theory. Illustrated.
NASA
Nasa: Kepler's Second Law
This site from NASA states Kepler's second law of planetary motion and depicts its meaning with an informative diagram. Relates the law to conservation of energy principles and discusses the eccentricity of a satellite's (or a planet's)...
Other
Gyroscopes.org: Gyrosopic Propulsion
This site explores the speculative concept of gyroscope propulsion, including a description of force precessed gyroscopes. This research could theoretically lead to the development of new engines and thrust devices.
Science Struck
Science Struck: A Comprehensive List of All the Physics Formulas
Provides a long list of physics formulas for easy reference.
Khan Academy
Khan Academy: What Is Weight?
This article on weight will help you prepare for the AP Physics test. Included are example problems to help you practice.
Khan Academy
Khan Academy: What Is Newton's Third Law?
This article offers a description and real-life examples of Newton's Third Law. Practice questions are included to test your knowledge!